Ultra Fine grit for intercoat sanding of stain/varnish Clog-reducing NET design for less dust build-up and up to 10X longer sanding life Premium ceramic grain blend for fast material removal and extra-long sanding life Reusable technology, simply shake, vaccum, or rinse and reuse Includes free connection pad (a $5 value) for easy attachment to tool Fits all 5 and 8-hole orbital sanders for fast alignment